.filter {
  position: relative;
  z-index: 3;
  height: 40px;
  :global {
    .content {
      position: relative;
      z-index: 3;
      background-color: #fff;
    }
    .mask {
      position: fixed;
      z-index: 2;
      left: 0;
      right: 0;
      top: 0;
      bottom: 0;
      background-color: rgba(0, 0, 0, 0.5);
    }
  }
}
